Seed 1.6

ByteDance Seed · Released December 2025

Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window.

Facts and pricing

Provider

ByteDance Seed

Context window

262K tokens

Input price

2.8 credits / 1M tokens ($0.25 raw)

Output price

22.0 credits / 1M tokens ($2.00 raw)

Vision (image input)

Yes

Tool calling

Yes

Extended reasoning

No

Credits are what Zeplik bills: 1 credit = $0.10, computed from the raw provider rate with a 1.10x margin. Raw prices shown per 1M tokens.

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What Seed 1.6 is best for

• Balanced everyday work: writing, questions, brainstorming and summarization
• Long documents: the 262K-token window holds lengthy reports, contracts or papers whole
• Working with images: screenshots, charts, photos and scanned documents alongside text
• Tool use and agents: reliably calls functions, so it can search, run skills and drive workflows

ByteDance Seed family

Frequently asked questions

What is Seed 1.6?

Seed 1.6 is an AI model by ByteDance Seed. Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window.

How much does Seed 1.6 cost on Zeplik?

Input tokens cost 2.8 credits per million and output tokens 22.0 credits per million (1 credit = $0.10; the raw provider rates are $0.25 and $2.00 per million). New accounts start with free credits.

How long can a conversation with Seed 1.6 be?

Seed 1.6 has a 262K-token context window (262,144 tokens), which covers the conversation plus any documents you attach.

Does Seed 1.6 support images and tools?

Seed 1.6 accepts image input and supports tool calling.

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